Chase-lock.



A. H. WADEWITZ.

cuss LUCK. I APPLICATION FILED JAN. 23, 1913.

1,078,594. Patented N0v.11,1913.

ALFRED H. WADEWI'IZ, 0F RACINE, WISCONSIN.

CHASE-LOCK.

intense.

Application filed January 23, 1913.

provision of a false chase in which wood furniture and quoins ordinarilyused in blocking and locking type chases are entirely dispensed with, asthe said type chases can be securely mounted and fastened in properposition on the flat bed of the printing press irrespective of the shapeand size of the form.

- Another object of the invention is the provision of a false chase inwhich the type chase will be held on three of its sides so that therewill be no possibility of displacement of the same during the working ofthe press, yet the type chase can be readily and quickly adjusted whenupon the flat bed of the said press.

A further object of the invention is the provision of a false chasewhich is simple in construction, readily and easily mounted and adjustedon the bed of the printing press, and also one which is strong, durable,thoroughly reliable and eiiicient in its purpose, and inexpensive inmanufacture.

With these and other objects in View, the invention consists in theconstruction, combination and arrangement of parts as will behereinafter more fully described, illus trated in the accompanyingdrawing, and pointed out in the claims hereunto appended.

In the drawing: Figure 1 is a fragmentary plan view of a flat bedprinting press with the type chase mounted thereon, and the false chaseconstructed in accordance with the invention in operative position. Fig.2 is a sectional view on the line 22 of Fig. 1. Fig. 3 is a perspectiveview of one of the holding dogs. Fig. 1 is a perspective view of one ofthe side bars adapted to cooperate with the holding dogs.

Similar reference characters indicate cor responding parts throughoutthe several views in the drawing.

Referring to the drawings by numerals, 5 designates generally the flatbed of a printing press of the ordinary well-known type Specification ofLetters Patent.

Patented Nov. 1 1, 1913.

Serial No. 743,792.

on the upper face of which are fixed as usual side bars 6, which areordinarily known as brayers, the same being fastened thereto in anysuitable manner, while arranged between and secured to the upper face ofthe said bed nearest the end of the cylinder of the printing press is across bar 7. At the opposite end of the bed and rising therefrom arespaced lugs 8 provided with adjusting screws 9 working against a bar 10which serves as a contacting strip for one end of a type chase 11 of theusual construction.

The false chase comprises a pair of bars 12, which are arranged againstthe inner side of the bars 6 so as to lie parallel therewith, the inneredges of the bars 12 being formed with spaced semicircular-shapednotches 13 throughout a greater portion of their length, while each barat one end is provided with an out-turned earld disposed against one endedge of the side bar 6 adjacent thereto. The ears 1a have threadedtherein set screws 15, which enable the bars 12 to be adjustedlongitudinally upon the bed of the printing press. Clamping dogs 16 areformed with curved fingers 17 and 18 respectively, the fingers 17 beingdesigned to engage the upper or inner end of the type chase and thefingers 18 being designed to engage the two sides of the type chasewhich run parallel to the sides of the press;

the engaging of the said fingers 17 and 18 with the said ends and sidesof the type chase being for the purpose of securely holding the saidtype chase on the bed of the printing press. The dogs are formed withnibs 19, which engage in the notches 13 in bars 12, whereby said dogswill be held in adjusted position for clamping the type chase in amanner as shown in Fig. 1 of the drawing.

When it is desired to tighten the type chase 11 when engaged by thedogs, the adjusting screws 9 in the ears 8 are turned, thereby lockingthe said chase upon the flat bed of the printing press without requiringthe use of ordinary wood furniture or quoins.

It is clearly apparent that the dogs may be positioned with respect toeach other to accommodate type chases of different size, the dogs beingmade in diiferent sizes to meet different sizes of chases and presses.

From the foregoing description, taken in connection with theaccompanying drawing,

it is thought that the construction and operation of the invention willbe clearly understood, and therefore a more extended explanation hasbeen omitted.

The invention herein described and shown in the accompanying drawing,while somewhat similar, difi'ers in several material respects from theinvention for which I was heretofore granted a Patent Number 1,048,241,which issued on December at, 1912, as will appear by a comparison of thespecifications and drawings, namely, in the elimination of the cross-bar(numbered 16 in the specification and drawing of th former invention),and the replacing of the holding dogs (numbered 18 in the specificationand drawing of the former invention) by dogs of a differentshape andsize so designed as to engage with and fit directly into the notches 13of the bars 12, as appears by the accompanying drawing, (said latterdogs being numbered 16 in this specification and in the accompanyingdrawing). The advantage of this invention is that, with dogs varying inlength and size depending upon the size of the chase and press, thechase lock herein described will fit practically any press, and firmlyhold the type chase in place.

I claim:

1. The combination with the fiat bed of a printing press having spacedparallel side bars fixed to and rising from said bed, and notched barsarranged against the inner sides of said parallel side bars and restingupon said bed; of clamping dogs resting upon said bed and adapted andarranged so as to adjustably engage the said notched bars and the innerend and sides of a type chase, substantially as described.

2. The combination with the flat bed of a printing press having spacedparallel side bars fixed to and rising from said bed, and notched barsarranged against the inner edges of said side bars and supported uponthe bed, of clamping dogs adapted to enboth the end and sides or" a typechase and adjustably engaging the notched bars, and means on the outerside of. said type chase to secure the same upon the flat bed.

ALFRED H. RVADEWITZ. lVitnesses E. H. WADEWITZ,

E. J. CHRISTENSEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

